Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1140/epjc/s10052-016-3910-6

Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector

ATLAS Collaboration

CERN
Aix-Marseille Université and CNRS/IN2P3
University of Oklahoma
Academia Sinica - Institute of Physics
Azerbaijan National Academy of Sciences
University of Amsterdam
Michigan State University
University of Toronto
Tel Aviv University
Technion-Israel Institute of Technology
University of Oregon
Stockholm University
The Oskar Klein Centre
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
King's College London
AGH University of Krakow
United States Department of Energy
Northern Illinois University
Ludwig Maximilian University of Munich
Didcot
University of Liverpool
University of Belgrade
University of Göttingen
Laboratório de Instrumentação e Física Experimental de Partículas
University of Granada
Boston University
Joint Institute for Nuclear Research
University of Rome Tor Vergata
Lund University
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Bologna
University of Victoria BC
Université Grenoble Alpes
Universidad Nacional de La Plata
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
The University of Chicago
Columbia University
University of Sussex
University of Birmingham
University of Naples Federico II
University of Copenhagen
University of Washington
Kobe University
University of Valencia
Lawrence Berkeley National Laboratory
High Energy Accelerator Research Organization, Tsukuba
Universidade Federal do Rio de Janeiro
Brandeis University
University of Michigan, Ann Arbor
University of Coimbra
University of Lisbon
University of Freiburg
University of Sheffield
University of Geneva
Heidelberg University
University of Milan
National and Kapodistrian University of Athens
Technische Universität Dresden
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Institute for High Energy Physics
University of Pisa
Moscow Engineering Physics Institute
Slovak Academy of Sciences
Duke University
University of Montreal
University of Iowa
Bogazici University
University of Cambridge
University of Bonn
Alikhanov Institute for Theoretical and Experimental Physics
The University of Tokyo
German Electron Synchrotron
Comenius University
University of Illinois at Urbana-Champaign
University of Siegen
Czech Technical University in Prague
University of Johannesburg
Université Paris-Sud and CNRS/IN2P3
TRIUMF
Roma Tre University
Mohammed V University in Rabat
Aristotle University of Thessaloniki
University of Rome La Sapienza
CAS - Institute of High Energy Physics
Yale University
Charles University
Stony Brook University
University of Manchester
University of Pennsylvania
Polish Academy of Sciences
University of Wisconsin
University of Wuppertal
University of Melbourne
University of Genoa
Max Planck Institute for Physics (Werner Heisenberg Institute)
SLAC National Accelerator Laboratory
CNRS/IN2P3 and Université de Savoie
University of Oxford
Universidad Autónoma de Madrid
Harvard University
Lancaster University
Petersburg Nuclear Physics Institute (PNPI)
University of Glasgow
University of California at Santa Cruz
California State University Fresno
Ohio State University
Laboratoire de Physique Nucléaire et de Hautes Energies
Tufts University
University of Bern
University of Fribourg
Johannes Gutenberg University Mainz
University of Warwick
Gaziantep University
McGill University
Carleton University
University of Massachusetts
University of Hassan II Casablanca
York University Toronto
Uppsala University
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Royal Holloway University of London
Queen Mary University of London
University of Pittsburgh
Humboldt University of Berlin
University College London
The University of Sydney
Argonne National Laboratory
Pontificia Universidad Católica de Chile
Lomonosov Moscow State University
Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
Chinese University of Hong Kong
The University of Hong Kong
Hong Kong University of Science and Technology
SUNY Albany
Université Clermont Auvergne
Oklahoma State University
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Nanjing University
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Czech Academy of Sciences
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Jožef Stefan Institute
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Mohamed I University
Ivane Javakhishvili Tbilisi State University
Universidade Federal de São João del-Rei
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National Institute for Research and Development of Isotopic and Molecular Technologies
Justus Liebig University Giessen
Cadi Ayyad University
The University of Osaka
Peter the Great St. Petersburg Polytechnic University
Nagasaki Institute of Applied Science
University of Science and Technology of China
National Center for Energy, Nuclear Science and Technology
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ICREA
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KTH Royal Institute of Technology
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Hiroshima Institute of Technology
Okayama University
University of Minho
Universidad de Buenos Aires
Jagiellonian University in Kraków
International School for Advanced Studies
University of South Carolina
CNRS/IN2P3
Sun Yat-Sen University
TOBB University of Economics and Technology
Kyoto University of Education
Massachusetts Institute of Technology
Stanford University
Wigner Research Centre for Physics
University of Malaya

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33 引用（Scopus）

摘要

This paper reports inclusive and differential measurements of the tt̄ charge asymmetry A_Cin 20.3 fb⁻¹of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the tt̄ system. The tt̄ pairs are selected in the single-lepton channels (e or μ) with at least four jets, and a likelihood fit is used to reconstruct the tt̄ event kinematics. A Bayesian unfolding procedure is performed to infer the asymmetry at parton level from the observed data distribution. The inclusive tt̄ charge asymmetry is measured to be A_C= 0.009 ± 0.005 (stat. + syst.). The inclusive and differential measurements are compatible with the values predicted by the Standard Model.

源语言	英语
文章编号	87
期刊	European Physical Journal C
卷	76
期	2
DOI	https://doi.org/10.1140/epjc/s10052-016-3910-6
出版状态	已出版 - 2016
已对外发布	是

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@article{ab53adfaffc74b6e84ed374318325e34,

title = "Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector",

abstract = "This paper reports inclusive and differential measurements of the t{\=t} charge asymmetry ACin 20.3 fb−1of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the t{\=t} system. The t{\=t} pairs are selected in the single-lepton channels (e or μ) with at least four jets, and a likelihood fit is used to reconstruct the t{\=t} event kinematics. A Bayesian unfolding procedure is performed to infer the asymmetry at parton level from the observed data distribution. The inclusive t{\=t} charge asymmetry is measured to be AC= 0.009 ± 0.005 (stat. + syst.). The inclusive and differential measurements are compatible with the values predicted by the Standard Model.",

author = "\{ATLAS Collaboration\} and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and R. Aben and M. Abolins and AbouZeid, \{O. S.\} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and J. Adelman and S. Adomeit and T. Adye and Affolder, \{A. A.\} and T. Agatonovic-Jovin and J. Agricola and Aguilar-Saavedra, \{J. A.\} and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and Alberghi, \{G. L.\} and J. Albert and S. Albrand and \{Alconada Verzini\}, \{M. J.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and G. Alexander and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Alkire, \{S. P.\} and Allbrooke, \{B. M.M.\} and Allport, \{P. P.\} and A. Aloisio and A. Alonso and F. Alonso and C. Alpigiani and A. Altheimer and \{Alvarez Gonzalez\}, B. and L. Yuan",

note = "Publisher Copyright: {\textcopyright} CERN for the benefit of the ATLAS collaboration 2016.",

year = "2016",

doi = "10.1140/epjc/s10052-016-3910-6",

language = "英语",

volume = "76",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "2",

}

TY - JOUR

T1 - Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdinov, O.

AU - Aben, R.

AU - Abolins, M.

AU - AbouZeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Agatonovic-Jovin, T.

AU - Agricola, J.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Alimonti, G.

AU - Alio, L.

AU - Alison, J.

AU - Alkire, S. P.

AU - Allbrooke, B. M.M.

AU - Allport, P. P.

AU - Aloisio, A.

AU - Alonso, A.

AU - Alonso, F.

AU - Alpigiani, C.

AU - Altheimer, A.

AU - Alvarez Gonzalez, B.

AU - Yuan, L.

PY - 2016

Y1 - 2016

N2 - This paper reports inclusive and differential measurements of the tt̄ charge asymmetry ACin 20.3 fb−1of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the tt̄ system. The tt̄ pairs are selected in the single-lepton channels (e or μ) with at least four jets, and a likelihood fit is used to reconstruct the tt̄ event kinematics. A Bayesian unfolding procedure is performed to infer the asymmetry at parton level from the observed data distribution. The inclusive tt̄ charge asymmetry is measured to be AC= 0.009 ± 0.005 (stat. + syst.). The inclusive and differential measurements are compatible with the values predicted by the Standard Model.

AB - This paper reports inclusive and differential measurements of the tt̄ charge asymmetry ACin 20.3 fb−1of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the tt̄ system. The tt̄ pairs are selected in the single-lepton channels (e or μ) with at least four jets, and a likelihood fit is used to reconstruct the tt̄ event kinematics. A Bayesian unfolding procedure is performed to infer the asymmetry at parton level from the observed data distribution. The inclusive tt̄ charge asymmetry is measured to be AC= 0.009 ± 0.005 (stat. + syst.). The inclusive and differential measurements are compatible with the values predicted by the Standard Model.

UR - https://www.scopus.com/pages/publications/85010218965

U2 - 10.1140/epjc/s10052-016-3910-6

DO - 10.1140/epjc/s10052-016-3910-6

M3 - 文章

AN - SCOPUS:85010218965

SN - 1434-6044

VL - 76

JO - European Physical Journal C

JF - European Physical Journal C

IS - 2

M1 - 87

ER -

Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector

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